CA2075884A1 - Integrated frequency synthesizer circuit for transmit-and-receive operation - Google Patents

Integrated frequency synthesizer circuit for transmit-and-receive operation

Info

Publication number
CA2075884A1
CA2075884A1 CA002075884A CA2075884A CA2075884A1 CA 2075884 A1 CA2075884 A1 CA 2075884A1 CA 002075884 A CA002075884 A CA 002075884A CA 2075884 A CA2075884 A CA 2075884A CA 2075884 A1 CA2075884 A1 CA 2075884A1
Authority
CA
Canada
Prior art keywords
input
controllable
oscillator
switch
signal output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002075884A
Other languages
French (fr)
Other versions
CA2075884C (en
Inventor
Josef Fenk
Volker Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2075884A1 publication Critical patent/CA2075884A1/en
Application granted granted Critical
Publication of CA2075884C publication Critical patent/CA2075884C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Electronic Switches (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

An integrated circuit includes first and second oscillators.
A controllable switch has a signal input connected to a signal output of the second oscillator. A modulator has two signal inputs each being coupled to a signal output of a respective one of the first oscillator and the controllable switch. At least one controllable reversing switch has two signal inputs each being connected to a signal output of a respective one of the modulator and the controllable switch.
A controllable frequency divider has a signal input connected to a signal output of the second oscillator. Two signal input terminals are each connected to a modulation input of a respective one of the oscillators, and two input terminals are each connected to the frequency control input of a respective one of the oscillators. Signal output terminals are each connected to the signal output of a respective one of the first oscillator, the at least one controllable reversing switch, the frequency divider, and the second oscillator. Control terminals are respectively connected to the control input of the frequency divider, to the control input of the controllable switch and the switch input of the first oscillator, and to the control input of the at least one controllable reversing switch.
CA002075884A 1991-08-14 1992-08-12 Integrated frequency synthesizer circuit for transmit-and-receive operation Expired - Fee Related CA2075884C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4126915.2 1991-08-14
DE4126915A DE4126915A1 (en) 1991-08-14 1991-08-14 INTEGRATED FREQUENCY SYNTHESIZER CIRCUIT FOR TRANSMITTER AND RECEIVER OPERATION

Publications (2)

Publication Number Publication Date
CA2075884A1 true CA2075884A1 (en) 1993-02-15
CA2075884C CA2075884C (en) 2003-02-25

Family

ID=6438308

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002075884A Expired - Fee Related CA2075884C (en) 1991-08-14 1992-08-12 Integrated frequency synthesizer circuit for transmit-and-receive operation

Country Status (4)

Country Link
US (1) US5337005A (en)
EP (1) EP0527360B1 (en)
CA (1) CA2075884C (en)
DE (2) DE4126915A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2734972B1 (en) * 1995-05-31 1997-08-01 Matra Communication FREQUENCY MODULATED RADIO TRANSMISSION DEVICE
US5572168A (en) * 1995-08-09 1996-11-05 Lucent Technologies Inc. Frequency synthesizer having dual phase locked loops
JPH09200070A (en) * 1996-01-12 1997-07-31 Matsushita Electric Ind Co Ltd Receiver circuit
JP3031260B2 (en) * 1996-08-09 2000-04-10 日本電気株式会社 Mixer circuit
US5974305A (en) 1997-05-15 1999-10-26 Nokia Mobile Phones Limited Dual band architectures for mobile stations
JPH1141132A (en) * 1997-07-24 1999-02-12 Toshiba Corp Wireless communication device
DE10112575A1 (en) 2001-03-15 2002-10-02 Siemens Ag Method and device for generating mobile radio signals
DE10114779A1 (en) 2001-03-26 2002-10-24 Infineon Technologies Ag Sending and receiving unit
EP3896868A1 (en) * 2017-03-28 2021-10-20 QUALCOMM Incorporated Range-based transmission parameter adjustment
US10305611B1 (en) 2018-03-28 2019-05-28 Qualcomm Incorporated Proximity detection using a hybrid transceiver
US11129116B2 (en) 2019-06-21 2021-09-21 Qualcomm Incorporated System for detecting an object within a transmission path

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2420638A1 (en) * 1974-04-27 1976-03-18 Philips Nv CIRCUIT ARRANGEMENT FOR GENERATING A SUM AND / OR DIFFERENCE SIGNAL
GB2100534B (en) * 1981-06-16 1985-04-03 Standard Telephones Cables Ltd Frequency synthesiser
JPS5854740A (en) * 1981-09-28 1983-03-31 Nec Corp Frequency synthesizer
JPS63281520A (en) * 1987-05-14 1988-11-18 Nippon Telegr & Teleph Corp <Ntt> Multi-output frequency synthesizer
JPH0537435A (en) * 1991-07-31 1993-02-12 Nec Corp Local oscillation frequency synthesizer used for tdma system

Also Published As

Publication number Publication date
EP0527360A3 (en) 1993-12-01
EP0527360B1 (en) 1995-11-08
US5337005A (en) 1994-08-09
CA2075884C (en) 2003-02-25
DE59204241D1 (en) 1995-12-14
DE4126915A1 (en) 1993-02-18
EP0527360A2 (en) 1993-02-17

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Legal Events

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EEER Examination request
MKLA Lapsed